Chimney-flue thimble.



Patented lune 27, |899.

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lfnee UNITED STATES DANIEL IV. SIIELLEY, OF WILLIAMSIVILLE, ILLINOIS.

PATENT OFFICE.

.CHIMNEY-FLUE THIMBLE.

SPECIFICATION forming part of Letters i Applicationiiled March 25, 1899.

To @ZZ whom, it may concern:

Be it known that I, DANIEL WEBSTER SHEL- LEY, a citizen of the United States, residing at WVillamsville, in the county of Sangamon and State of Illinois, have invented a certain new and useful Improvement in Chimney- Flue Thirnbles, of which the following is a specification. v

My invention relates to improvements in chimney-flue thimbles in which it is sought to bind the stovepipe in place in the thimble in a secure manner when pushed into the thimble, so that it will not slip out or move withont being released.

My invention is illustrated by the accompanying drawings, in which- Figure l is the outer end projection of the thimble; Fig. 2, a section through the thimble on the line X Y; Fig. 3, an enlarged section of the plug D and semicylinder B, showing the two positions of the end of the U- shaped clamp C in the semicylinder B when loose and when clamped; and Fig. 4 is an enlarged view of the U-shaped clamp C.

Similar letters refer to similar parts throughout the several views.

The thimble is composed of the cylindrical thimble A, having along one side a smaller semicylinder B attached. In the outer end of B is a cylindrical plug D, loosely placed, so that it may be revolved in B. In order that D may be easily revolved, the thumbpiece d is projected from the outer end of D. The plug D has in its inner end a short distance from its central axis a circular mortise or hole in which the end of one arm of the U-shaped clamp C is placed. When the plug D is revolved in B, the end of C resting in the plug D is carried with it, as illustrated PatenfNo. 627,674, dated June 27, 1899.

Serial No. 710,472. (No model.)

in Fig. 3, where the dotted lines show the two positions of the end of C, designated as C' when D is in one position and C2 when D has been revolved half of a complete revolution. The U-shaped clamp C' lies with one arm of the U in B and the otherl arm in A and at the middle of the curved portion passes loosely through a hole in the side of A, as shown in Fig. 2. W'hen the arm of C in D isin the position of C', Fig. 3, the end of the arm of C in A will be held aloof from the side of A, as shown in Fig. 2; but when the arm of C in B is inthe position of C2 in Fig. 3 then the end kof the arm of C in A will be clamped against theside of A, as shown by the dotted position of C in Fig. 2^. This clamp action of the arms of C results from the fact that the curved part of C is practically pivoted in A at the middle of the curve, as shown in Fig. 2.

By this means the end of a stovepipe may be substantially clamped to the thimble, so that it cannot be drawn away till the clamp is released.

Having thus described my invention, what I claim to be new, and desire to secure by Leta ters Patent, is-

In a chimney-flue thimble the combination of a thimble A, semicylinder B attached to one side of A; the cylindrical plug D set in the end of B and arranged to revolve in B; the U-shaped clamp C the end of one arm of which is inserted in a mortise in D and the other arm forms a clamp With the side of A', all substantially as and for the purposes set forth and described.

D. W-.SHELLEF In presence of- H. C. STERLING, OLIVER HUEEMAN. 

